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Troubleshooting

Ink not sticking, stripes, clogged nozzles: causes and fixes.

Problem finder: what do you see?

Choose the symptom that fits best. You go straight to causes and fixes.

Print can be scratched offInk does not stick or peels offLight or dark stripesBanding across the print directionBlurred edges, colour mistOverspray next to the designBubbles or craters in the clear varnishDots, holes or orange peel in the gloss varnishColours missing, gaps in the nozzle checkNozzles missing or clogged

All articles

Banding in UV printing: causes and fixes

Light or dark lines across your motif? Where banding in UV printing comes from and how to narrow it down and fix it step by step.

Blurry UV prints and ink mist (overspray)

Soft edges, ink mist beside the design, ragged borders? Why UV prints turn out blurry and how to reliably avoid overspray.

Bubbles and craters in varnish: causes and fixes

Tiny dots, bubbles or small craters in clear varnish after UV printing? How to tell defects from intended texture and narrow down the cause.

Clogged nozzles on a UV printer: nozzle check, cleaning, prevention

Lines missing in the nozzle check, white only coming out patchy? How to recognise, clean and avoid clogged nozzles on your UV printer.

UV print not sticking: ink scratches off

Can you scratch the UV print off with a fingernail, or does it come off with tape? The most common causes and how to test adhesion reliably.